Automatic water feed for hot-air-furnace humidors



Dec. 13, 1927. 1,652,451

.1. a. M ITULSKI AUTOMATIC WATER FEED FOR HOT AIR FURNACE HUMIDORS Filed March 27. 1926 Attorngy Inventor Patented Dec. 13, 1927.

NWE Es JOHN B. MI'DULSKI, OF DETROIT, MICHIGAN:

. iAU'roMATIo WATER 'FEED FOR HOT AIR-FURNACE err-ominous.

Applicationfiled March 27, 1926. SeriaLNoI 97,929.

This invention relates to "humidors for hotair-furn-acesmnd has for its primary Object "to' provide means [for automatically maintaining the humidor supplied with water for overcoming the requirement of manually replenishing the humidor with wa-' come apparent as the nature of the invention is better understood, the same compris mg the novel form, combination, and arrangement of parts hereinafter more fully described, shown in the accompanying drawin and claimed.

n the drawing wherein Y like reference characters indicate corresponding parts throughout the several views:

Figure 1 is a fragmentary view in side elevation partly broken away and partly in cross section of a conventional hot air furnace wherein the humidor is equipped with my novel automatic water feed.

Figure 2 is an enlarged top plan of the float controlled valve actuating member of the water feed. V

Figure 3 is an enlarged section taken through the discharge end of the water pipe that is arranged within the humidor for more clearly disclosing the valve mechanism of the present device, and

s Figure 4 is a detail of the supporting ele- 0 ment for the float controlled valve operatin member.

-l Now having particular reference to the drawing, 5 indicates a conventional hot air furnace at one side of which is a water tank 4 5 6, into the lower end of which leadsa hotv water pipe 7 that is in communication with a water heating coil 8 located within the furnace, said coil being in turn in communication with the'source of water supply, I and whichcoil is usually located within the f furnace above the fire grate thereof. {As is usual, the humidor pan 9 is arrangedwithin the rear side of the furnace, and isadapted toflcontain a supply of waterin order that the furnace will discharge moistened air. i' In carrying out" my invention, the connection tached thereto and in communication therewith a branch pipe 10, the discharge end of which terminates above the humidor pan 9 at one side thereof, said end being equipped with an elbow 11 that turns downwardly in between "the tank pipe? and coil 8 has ata the direction of the pan as clearly shown in Figure 1. The lower end of said elbow 11 is internally threaded, Figure 3, and is adapted to receive a threaded plug 12 formed with a central bore 13, .said plug being formed adjacent its lower end with an an nular shoulder 14: for a purpose to be here inafter more fully described.

Arranged over the plug 12 above the r V ahoulder 14: is an annulus 15 that is adapted to be secured in place between the shoulder at the lower edge of the elbow by turning the plug inwardly of the elbow. For preventing leakage between the elbow and said plug, gaskets 16 are disposed upon the plate and upon the elbow shoulder, which gaskets will be compressed when the plug is turned inwardly of the elbow. I I

Formed upon diametrically opposite points of the annulus 15 are downwardly extending inclined arms 16'16 between which the yoked. inner end 17 of a valverod 18 is pivoted. by reason of a cross pin 19. The for ward end of said rod is equipped with a float 20 operable by the fluid within the humidorpan 9.

Loosely arranged iuthe bore .13 of the elbow plug 12 is a valve stem 21 that is pivoted at its lower end between the arms of the yoke 17 of said float rod 18 and carries at'its upper end a disc-like valve 22 that,

will when the float 20 is moved upwardly under the action of the water within the humidor pan close the bore of the plug for preventing the passage of the water therethrough. On the otherhand when the float lowers, the valve will be .raisedfrom the plug to permit, an additional supply of water to enter said humidor pan. f

It'will thus beseen that I. have provided a highly novel, simple, but yet extremely eflicient means of supplying water in an;

automatic manner to the humidor pans of hot air furnaces, and even though I have herein shown anddescribed the invention as describing certain detailed elements of construetion, it is nevertheless to be understood that departures may be had from the show- .ing without :ill'eeting the spirit and scope of the appended claim.

.l luving thus described the invention, What .I. claim as new and desire to secure by Letters Patent is A funnuco uttuehment to be used with a hunndor pun comprising a pipe adapted to lead into said pan, an elbow arranged upon the discharge end oi? the pipe and adapted to extend dmvnu'ai'dly into the pan, a plug arranged in the free end of the elbow and being formed with :1v bore therethrough, a circular shoulder Formed upon the lower end of the plug, an annulus arranged about the plug and. adapted to be secured between the elbow and the shoulder, arms extending d0Wn- Wurdly from the annulus, n float-eonlrolled valve zu'iuuting rod pivoted adjacent one end between said arms, u valve having; a shank extemling through the bore of the plug and attached to the end of the said rod.

111 testimony whereof I :iflix my signature.

JOHN B. MITULSKI. 

